Christian adults need to think about talking to our own children as a form of cross-cultural missions. Cultural change happens so quickly that teens are exposed to ideas and worldviews very different from those of previous generations.

Modern secular thought has its own dualism: It treats only the physical world as knowable and testable, while locking everything else - mind, spirit, morality, meaning - into the realm of private, subjective feelings. The so-called fact/value split.

There are unprecedented numbers of movements for human rights and freedoms. But the dominant worldviews in academia, like materialism and naturalism, deny the reality of freedom, reducing humans to robots. So where does the concept of human rights come from?

Many people operate as though the definition of faith were, Don't ask questions, just believe. They quote Jesus himself, who taught his followers to have the faith of a child (Mark 10:15). But I once heard Francis Schaeffer respond by saying, "Don't you realize how many questions children ask?"

The most fundamental decision we all face over the course of our lives is what we will recognize as the ultimate reality, the uncaused source and cause of our existence. Everything else in our worldview depends on that initial decision. The Bible speaks of this foundational choice in terms of who or what we worship. We must all answer the challenge Joshua issued to the Israelites as they were poised to enter the Promised Land: "Choose this day whom you will serve" (Josh. 24:15).

Americans have grown impatient with the relentless politicizing of every area of life.

I began asking, 'How can we know Christianity is true?' Sadly, none of the adults in my life offered an answer. Eventually I decided Christianity must not have any answers, and I became an agnostic.